6533b862fe1ef96bd12c76df

RESEARCH PRODUCT

Large shape staggering in neutron-deficient Bi isotopes

A.v. OleynichenkoA.v. OleynichenkoJulian C. BerengutMark BissellJean-pierre DognonK. ChrysalidisK. ChrysalidisR. F. Garcia RuizV. N. FedosseevB. AndelSacha SchiffmannV. PanteleevC. RaisonB. A. MarshC. SeiffertG. J. Farooq-smithMagdalena ElantkowskaD. V. FedorovJ. KarlsThomas Elias CocoliosEphraim EliavAndréi ZaitsevskiiAndréi ZaitsevskiiSebastian RotheM. D. SeliverstovDominik StuderM. HuyseM. Al MontheryKara Marie LynchP. MosatK. RezynkinaP. Van DuppenP. MolkanovL. V. SkripnikovL. V. SkripnikovM. L. ReitsmaRalf Erik RosselA. BarzakhM. StryjczykS. PéruS. SelsS. HilaireC. GranadosR. D. HardingP. LarmonierR. HeinkeJ. G. Li (李冀光)S. GorielyAnastasia BorschevskyL. P. GaffneyJacek BieronAndrei AndreyevAndrei AndreyevT. Day GoodacreT. Day GoodacreJarosław RuczkowskiMichel GodefroidM. VerlindeSebastian WilmanS. AntalicD. E. MaisonD. E. MaisonJ. G. CubissPekka Pyykkö

subject

PhysicsMagnetic moment010308 nuclear & particles physics116 Chemical sciencesGeneral Physics and Astronomy[CHIM.MATE]Chemical Sciences/Material chemistry01 natural sciencesPhysique atomique et nucléaire[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistryCharge radiusNeutron number0103 physical sciencesQuadrupoleNuclear Physics - ExperimentNeutronAtomic physics010306 general physicsSpin (physics)Ground stateMagnetic dipole

description

The changes in the mean-square charge radius (relative to 209Bi), magnetic dipole, and electric quadrupole moments of 187,188,189,191Bi were measured using the in-source resonance-ionization spectroscopy technique at ISOLDE (CERN). A large staggering in radii was found in 187,188,189Big, manifested by a sharp radius increase for the ground state of 188Bi relative to the neighboring 187,189Big. A large isomer shift was also observed for 188Bim. Both effects happen at the same neutron number, N=105, where the shape staggering and a similar isomer shift were observed in the mercury isotopes. Experimental results are reproduced by mean-field calculations where the ground or isomeric states were identified by the blocked quasiparticle configuration compatible with the observed spin, parity, and magnetic moment. ispartof: Physical Review Letters vol:127 issue:9 ispartof: location:United States status: published

10.1103/physrevlett.127.192501https://hal-cea.archives-ouvertes.fr/cea-03412363